MAX5003EEE Maxim Integrated Products, MAX5003EEE Datasheet
MAX5003EEE
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MAX5003EEE Summary of contents
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... Input Feed-Forward for Fast Line-Transient Response o Precision ±2.5% Reference over Rated Temperature Range o Thermal Shutdown PART MAX5003CEE MAX5003CSE MAX5003C/D MAX5003EEE MAX5003ESE Note: Dice are designed to operate over a -40°C to +140°C junc- tion temperature (T Applications T = +25°C. A TOP VIEW High-Voltage PWM ...
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High-Voltage PWM Power-Supply Controller ABSOLUTE MAXIMUM RATINGS V+ to GND ............................................................-0.3V to +120V ES to GND ..............................................................-0.3V to +40V V to GND ............................................................-0.3V to +19V GND .........................................................-0.3V to +12.5V CC MAXTON, COMP, CS, FB, CON to GND..................-0.3V ...
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ELECTRICAL CHARACTERISTICS (continued) ( +12V 2V INDIV values are +25°C.) A PARAMETERS SYMBOL CURRENT LIMIT CS Threshold Voltage V CS Input Bias Current I Overcurrent Delay CS ...
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High-Voltage PWM Power-Supply Controller ELECTRICAL CHARACTERISTICS (continued ( +12V 2V INDIV values are +25°C.) A PARAMETERS SYMBOL PWM OSCILLATOR MAXTON Resistor Range R MAXTON Maximum On-Time Range ...
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R = 200kΩ FREQ MAXTON V+ INPUT CURRENT vs. VOLTAGE 3.0 2.5 2.0 1.5 1.0 0 CON COMP FB SWITCHING 100 120 V+ (V) ERROR ...
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High-Voltage PWM Power-Supply Controller (V = +12V 200kΩ FREQ MAXTON V LOAD REGULATION 12V TO 36V UNCONNECTED 1 DD ...
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PIN NAME 11 AGND Analog Ground. Connect to PGND close to the IC. Current Sense with Blanking. Turns power switch off Connect a 100Ω resistor between CS and the current-sense resistor (Figure 2). Connect CS to ...
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High-Voltage PWM Power-Supply Controller V+ 1 AGND INDIV 2 1.2V UV LOCKOUT ES 3 FREQ 4 FREQ REFOK SDN INDIV MAXTON SS 5 REF 6 RAMP SS CON 7 V CON PWM COMP SDN COMP 8 Figure 1. Functional Diagram ...
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V regulator has a lockout line that shorts the N-chan- CC nel MOSFET driver output to ground if the V not regulating. V feeds all circuits except the V CC lockout logic, the undervoltage lockout, and the power regulators. The ...
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High-Voltage PWM Power-Supply Controller It also determines power-up sequencing when several converters are used. Upon power turn-on, the SS pin acts as a current sink to reset any capacitance attached to it. Once REF has exceeded its lockout value, SS ...
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V CC not support such a load this current, equivalent to the product of the total gate switching charge (from the N-channel MOSFET data sheet), times the operating frequency, that determines the ...
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High-Voltage PWM Power-Supply Controller +48V (36V TO 72V 0.1µF 39k 62k 0.1µF 470nF 0V Figure 2. Application Example 1: Nonisolated +48V to +5V Converter 3) The main factors influencing the choice of the turns ratio are the ...
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R1 1M 0.1µF R2 62k 39k 1.3k 470nF 0.1µF 0.1µ -48V -36V TO -72V Figure 3. Application Example 2: Isolated -48V to +5V Converter where Duty cycle. Set to calculated minimum duty cycle at V ...
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High-Voltage PWM Power-Supply Controller where Resistor between the MAXTON pin and MAXTON ground V = Minimum power-line voltage MIN V = Power-line trip voltage UVL Maximum duty cycle at minimum MAX MIN power-line voltage ...
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Given the above considerations, R can be chosen (Figure 2). The sum of R chosen for low current drain. In the example 58kΩ ...
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... Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time. 16 ____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 © 2002 Maxim Integrated Products mounted parts, keep lead length as short as practical ...